Tantalum powder, method for producing same powder and sintered anodes obtained from it

US6238456A · kind A · utility

Assignee

• H. C. Starck GmbH & Co. KG · DE

Inventors

• Rudiger Wolf · Vienenburg, DE
• Karlheinz Reichert · Wolfenbüttel, DE
• Heike Biermann · Salzgitter, DE
• Josua Löffelholz · Langelsheim, DE
• Detlef Breithaupt · Salzgitter, DE

Key dates

• Filing date: Aug 19, 1999
• Grant date: May 29, 2001
• Expiry date: Aug 19, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C1/045
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention discloses a tantalum powder for capacitors and a method for making said tantalum powder wherein agglomerated tantalum powder is produced by means of thermal agglomeration of starting tantalum powders in the presence of hydrogen.